Detachable rubber heel for boots and shoes.



H. CHAPMAN. DETAGHABLE RUBBER HEEL FOR BOOTS AND SHOES.

APPLICATION FILED N120, 191m 93 04 Patented Mar. 14, 1911.

elevation and plan view, the heel-plate at-' UNITED STATES PATENT OFFICE 4 CHARLES H. CHAPMAN, or WINCHESTER, MASSACHUSETTS,- A'ssreNoE 'ro CHAPMAN DETACHABLE RUBBER. HEEL COMPANY, A eonronnrron or MAINE.

DETACHABLE RUBBER HEEL FOR BOOTS AND SHOES.

' Specification of Letters Patent. Patented lIar, 1 1, 191 1.

Application filed January 20, 1910. Serial No. 539,064.

capable of being locked in place on a boot 1 or shoe against the possibility of becoming detached while in use, and at the same time maintainingits full resiliency.

The invention consists of aheel having a. body of rubber in which is securely and accurately embedded ametal heel plate, which is adapted to be engaged by a metal clip which is'attached to the sole of the boot or shoe, and the clip connected with the plate by a pin extending through the rubber of the heel and a portion of the clip, from breast to back, and adapted to be removed for detaching the heel and for interchange of heels, the whole construction providing fort the adaptationof the parts toconditio s arising in use, while insuring the attachment of the heel to the boot or shoe, all as I will proceed nowmore' particularly to set forth and claim.

In the accompanying drawings, illustrating the invention, in the several figures of which like parts are similarly designated, Figure 1 is a top plan view of the heel without the clip. Fig. 2 is an elevation looking at the breast, partly broken out to show the riveting. Fig. 3 is a top plan view of the heelplate. Fig. 4 is a side elevation of the heelplate and rivets, indicating by dotted lines the hereinafter described vertical movements of the rivets relatively to the heelplate. Fig. 5 shows, on a larger scale, in

taching rivets. Fig. 6 shows in top plan, edge and .end views, the clip. Fig. 7 is a top plan view of the complete heel. .Fig. 8 1s a central vertical longitudinal section of the complete heel, including the clip for connecting with the boot or shoe sole, and showing one of the marking pins in place. Fig. 9 15 an elevation of the connecting pin.

The heel 1 may be of the usual shape, and

a series of edge holes 3,

composed of rubber. In the hollow of the heel is a plate 2 of sheet-metal, ot'less area than the heel. This plate 2 is prm'idcd with g in which are arranged rivets 4, the holes being enough larger than the shanks of the rivets to permit relative vertical and lateral movement of the plate and rivets. The plate is also provided with holes 5 preferably arranged in two longitudinal. parallel rows. Transversely arranged rectangular holes 6 are made in the plate at its breast end, and a transverse elliptical hole 7 is made in said plate at its back end.

The plate 2 with the rivets l arranged therein substantially as'shown in Fig. at, is arranged so as to have the rubber of the heel vulcanized about it; the heads of the rivets serving as anchors to anchor the plate firmly to the rubber, as indicated in Fig. 2, and yet allowrelative vertical and lateral movement of the heel and rivets due to the vertical and lateral movements of the rivets and the resilience of the rubber in use.

During the molding operation, two holes are molded in the rubber heel at opposite corners, as shown in Fig. l, to receive two marking pins 8, and these marking pins 8 are arranged in the holes 5 so that their points project somewhat above the plate 2, and then when the heel is to be applied to the sole, the heel, constructed as already described, and provided with these marking pins, is pressed against the sole in proper position, and these marking pins leave their impress on the sole, so as to guide the manufacturer in applying the heel-securing delvice or clip, now to be described, to the so e.

-The clip 9 is made of metal, and has a series of holes 10 corresponding in location and arrangement with the holes 5 in the heel-plate 2, and adapted to register with the marking pins 8 in the heel. When the sole has been properly marked, then any suitable fastening nails or other devices ll are driven through the holes 10 in'the clip and into the sole, so as to secure the clip accurately to the sole. In order that the clip may firmly engage the heel-plate 2, it is provided with a downwardly projecting lip 12 designed to extend through the hole,7 in the heel-plate and into the rubber of the heel; and if necessary, or desirable, the rubber porhaving in it a hole'13, said lip 12 being I tion may-,be provided witha cavity 14130 receive the projecting ends of the lip 12, and similar cavities may be madem the rrubber bodyadjacent to the-holes (Soto receive'the offset lips 15. See Fig. 8. -The opposite end of the clip is providedwith oifsetor depressed lips 15, which'as shown more" particularly in- Fig. 8, are adapted to pass into and through the holes 6 in thev heel-plate and underlie them-a This engagement of the lips l-with the heel-plate is first effected, and then the'lip'12 is passed into "the hole7, after which the pin, such as an ordinary-wire nail 16',--is drivenlongi:

i toward its back and between the lips 15 and vin line to engage the hole 13 in the lip 12.

tudinally-through. the-heel from its breast Of course, any suitable core may be used to preform this hole for the connecting pin 13 in the lip12.

16, andto insure its alinement with the hole Obviously, the connecting effects aperfect union and tight connection between the clip a-nd the heel.

i'ffBy: the simple driving out of the pin 16,

the heel may .be detached, and if it be run down, then the .heels of a pair of boots or shoes may be interchange'd, or either heel extendin *ofa pair may be replaced. Inasmuch as the will exert considerable traction 'or rubber I friction-upon'the pin, it may be necessary to use forceto drive out this pin,- and by the-hole clear through the heel from the breast to the back, anail suchas indicated at 17, Fig. 8, may be usedto drive out the" connecting pin'or to start it. *The tractionreferred to is of considerable value also in insuring the retention of the engagement ofthe pin with the parts it connects.

.The loose engagement of the rivets 4 with the heel-platefl, provides-for the relative vertical and lateral movement, and this serves to admit of the compression or expansion of the. heel in use, or, in other words, compensates for the resiliency of the rubber in use. a

It: will be observed that the holes 5 in the heel-plate are filled with rubber to a level with the-surface of the plate, .and these fillings aid in securing the heel and its plate.

IDhe heads of the nails 11 are embedded in the rubber in these holes when the plates 9' vand 2 are locked together, and thus help to preventthe rel'ativelateral movement of the It is to be no ted that the offset lips or "projections- 15 point forward, and thereby any blow against the heel by the forward. movement 'of the foot tends to. force the heel onto the plate attached to the sole, in-

stead of knocking it off.

i The yielding: character of the connection between the heel pl'ate'and the rubber por- Ition ofthe heel,.the forward pointing of the lips 15, and the connection of the clip is securely held to the shoe.

lip 12.-

with' 'the heel by means of a pin passed through the 'hole- 13in its lip 12, combine to make a heel which is easy In manufacturing the heel, the mold is provided "with projections which fill the holes 6. and 7. in the heel-plate, and it is also. provided with two or more. pins whose to" apply and purpose it is to form-two or more holes in the rubber heel to receive and hold the markmg pms 8. It will'be understood ef course,

that after the marking pins havefsubserved their heel.

The relative proportions of "the lip 12 and the hole 7 should be such as to insure a 'rathrclose fit between 'these two-parts so as to prevent any lateral movement.

The advantage in making the hole 7 elliptical is that the center of the 'opt-uing'is wide enough to be easily found by the lip 12, and thelatcral edges of this lip 12 find closely fitting seats'in the'V-shaped ends of purpose, they. are extracted from the this opening. A similar result may be obtained by otherv forms of opening. and in fact, if desired, the opening may be made rectangular.

If necessary, the connecting pin may have a circumferential. groove 18 which forms :r

sort of interlock with thehole 13 in cthe By constructing a detachable-heel in accordance with the present invention. with the offset lips 15 pointing forward, in accordance with the direction of' the foot in walking or running, it: is impossible to knock off the heel by a forward movement or kick of the foot, without tearing the nails' from the sole of the shoe, since such forward movement tends to 'force the heel onto the clip, instead of loosening it; "andthe back end of the portion of the heel being directly and positively pinned to the-,clip, it is absolutely impossible for the h'ec l 'to become detached at that point without withdrawing the pin. 3'

It is to be understood that the invention is not. limited to the specific construction 1. Arubber heel, having a plate provided with laterally and vertically yielding devices securely attached to said plate and embedded and vulcanized in the said rubber heel, and means for detachably securing the heel to the sole'of a boot or shoe. i 1 V 2. A heel having a rubber body, and a heel-plate securely attached to it and having laterally and vertically yielding projections embedded and vulcanized in said rubber body, and means to detachably se. cure the heel to the sole of a boot or shoe.

3. A heel, havlng a metallic plate, a series of rivets movably attached tosaid plate, a

rubber body-in which said rivets are embedded, said plate and rivets vulcanized in and to the said rubber body, and means for detachably securing the heel to the sole of boot orshoe. I

4. A heel, havinga rubber-body, a metallic plate, a series of laterally and vertically yielding project-ions applied to said plate and having heads embedded and vulcanized in said rubber body, said rubber body provided with a'hole extending through it below the metallic plate, a connecting pin adapted to be received and held in saidhole,

said plate and connecting pin adapted to detachably connect the heel to a plate adapted to be firmly secured to the sole of a boot or' shoe.

5. A heel, having'a rubber body, a me- 'tall'ic' heel-plate'fixed in said rubber body,

H 6. A'heel, having a rubber body, a plate forming a part of said heel, and a connecting clip, said plate-having an opening with two V-shaped ends to receive a lip on the c1ip,'said lip adaptedto enterthe two V- shaped ends of the said opening andthereby prevent lateral movement of the heel at its point of contact with the 'sole of the boot or shoe. v

7. A. heel-attaching clip, provided with nail-holes, offset lips at one end and a downwardly projecting lip at the other end provided with a hole, said offsetlips adapted to engage a rubber heel and the downwardly projecting lip passing into the heel, and a the hole in said downwardly projecting. lip to detachably retain the heel in place.

8. A detachable rubber heel, having a cushion body, and a heel-plate fixed therein and having openings near the breast and and the back of the heel, combined with a connecting clip provided with offset lips adapted to'engage the openings in said heelpin passing through the heel and engaging a plate at .the breast of the heel, and a downwardly projecting lip adapted to engage the'opening 1n the heel-plate at the backof the heel, and a connecting pin passed through the body and engaging the downwardlyprojecting lip of the clip and serving to connect the heel to the shoe.

In testimony whereof I have hereunto setmy hand this 19thdayot' Jannary,fi-"1. D.

CHARLES H. -CIPL-XPHAN.

Vitnesses: I

'B. L. NE MAN, H. H. HOLMES. 

